1Includes workers in the private nonfarm economy except those in privatehouseholds, and workers in the public sector, except the federal government. SeeTechnical Note for further explanation.

2Plans open to new participants.

3Plans closed to new workers or plans that cease accruals for some or all planparticipants.

4The percentile groupings are based on the average wage for each occupationsurveyed, which may include workers both above and below the threshold. Thepercentile values are based on the estimates published in the "National CompensationSurvey: Occupational Earnings in the United States, 2008." See Technical Note formore details.

NOTE: Because of rounding, sums of individual items may not equal totals. Fordefinitions of major plans, key provisions, and related terms, see the "Glossary ofEmployee Benefit Terms" at www.bls.gov/ncs/ebs/glossary20082009.htm.